Reputation · trust score
A transparent 0–100 signal. Every entity starts at a neutral baseline of 65; threat-intel blocklists, exposure, reverse-DNS, routing and allocation each adjust it up or down. Higher is more trustworthy.
- Baseline (neutral) 65
- Isp allocation +5
- Trust score 70 / 100
Experimental · trust-vectors model v1.2.0 — a transparent heuristic, not a definitive verdict. How it works →
Top CIDR ranges
| CIDR | IPs | PTR Density | Organization | Country | State | City |
|---|---|---|---|---|---|---|
| 175.12.0.0/17 | 32.8K |
0.0%
|
China Telecom | CN | Shanghai | Shanghai |
| 220.169.208.0/23 | 512 |
0.0%
|
China Telecom | CN | — | — |
BGP Announced Prefixes
Live BGP anomalies →Prefixes AS151823 actually originates in BGP, observed across our RIPE RIS collectors. This live routing view can differ from the registry allocation above.
| Prefix | Announcement samples | Last seen |
|---|---|---|
| 175.12.60.0/24 | 4,568 | 2026-07-24 20:12:52 |
| 175.12.96.0/22 | 4,559 | 2026-07-24 20:12:52 |
| 175.12.64.0/18 | 4,553 | 2026-07-24 20:12:52 |
| 175.12.0.0/18 | 4,550 | 2026-07-24 20:12:52 |
| 175.12.108.0/24 | 4,547 | 2026-07-24 20:12:52 |
| 175.12.64.0/22 | 4,546 | 2026-07-24 20:12:52 |
| 175.12.59.0/24 | 4,537 | 2026-07-24 20:12:52 |
| 175.12.61.0/24 | 4,537 | 2026-07-24 20:12:52 |
| 175.12.63.0/24 | 4,534 | 2026-07-24 20:12:52 |
| 175.12.58.0/24 | 4,527 | 2026-07-24 20:12:52 |
| 175.12.106.0/24 | 4,525 | 2026-07-24 20:12:52 |
| 175.12.62.0/24 | 4,524 | 2026-07-24 20:12:52 |
| 175.12.109.0/24 | 4,515 | 2026-07-24 20:12:52 |
| 175.12.105.0/24 | 4,462 | 2026-07-24 20:12:52 |
| 175.12.107.0/24 | 4,457 | 2026-07-24 20:12:52 |
| 220.169.208.0/24 | 3,792 | 2026-06-15 15:52:26 |
| 220.169.209.0/24 | 3,721 | 2026-06-04 11:07:01 |
Frequently Asked Questions
What is AS151823?
AS151823 is an Autonomous System Number assigned to China Telecom. An ASN identifies a network that controls a specific set of IP addresses and determines how traffic is routed across the internet via BGP (Border Gateway Protocol).
How many IP addresses does AS151823 announce?
AS151823 announces 33.3K IPv4 addresses distributed across 2 routed CIDR prefixes. The network is registered in China.
Who operates AS151823?
AS151823 is operated by China Telecom. The organization is based in China. You can view all IP ranges and related ASNs on the organization page.
What country is AS151823 registered in?
AS151823 is registered in China. This indicates where the network operator is headquartered, though the IP addresses it announces may serve users globally.
